🇾🇪 Yemen · Hydraulic works
Sadd al-Arim Secondary Dam
Sabaean Kingdom 750 BCE - 570 CE · Sabaean (Saba) kingdom
750 BCE Sabaean secondary saddle dam (420 m) and north sluice extension of Marib, doubling irrigated area via 2.1 km north canal.
🇾🇪 Yemen · Hydraulic works
Subeihi Dam
Sabaean Kingdom 800 BCE - 570 CE · Sabaean (Saba) kingdom
800 BCE Sabaean gorge regulator dam (90 m) 2.8 km upstream of Marib, desilting weir for oasis triad.
🇾🇪 Yemen · Hydraulic works
Sadd el-Arim Secondary Dam — Marib North Spillway
South Arabian (Sabaean to Himyaritic) · Sabaean Saba and Himyarite
Marib north secondary 750-m earthen with Almaqah sluice temple 50 musnad inscriptions, Sabaean 750 BCE spillway.
🇾🇪 Yemen · Hydraulic works
Marib North Sluice & Northern Oasis Canal (Sadd Ma'rib al-Shamali)
Sabaean to Himyarite (8th c BCE–6th c CE) · Sabaean / Himyarite
North sluice of Great Dam of Ma'rib (750 BCE–575 CE) — 23-m cut-stone control feeding northern oasis.
🇾🇪 Yemen · Hydraulic works
Marib South Sluice & Southern Oasis Canal (Jannat al-Janub)
Sabaean to Himyarite (7th c BCE–6th c CE) · Sabaean / Himyarite
South sluice of Great Dam of Ma'rib (7th c BCE–575 CE) — 18-m limestone control for the grand southern oasis.
🇪🇹 Ethiopia · Temple complex
Yeha Temple (Great Temple)
Pre-Aksumite Ethio-Sabaean (D'MT) Early South Arabian to Aksumite (800 BCE–500 CE) · Ethio-Sabaean (D'MT; South Arabian migrants + Tigrayan)
Africa's oldest standing building – 14 m high 700 BCE Sabaean Almaqah temple intact with dry-jointed ashlar sandstone.
🇾🇪 Yemen · Hydraulic works
Marib Dam East Wadi Dhana Barrage
Sabaean to Himyarite · Kingdom of Saba (Sabaean South Arabian) then Himyar
480-m east rockfill barrage of Great Marib Dam at Balaq Hills gap.
🇪🇷 Eritrea · Ancient city
Matara (Metara)
Pre-Aksumite Ethio-Sabaean to Late Aksumite (800 BCE–800 CE) · Ethio-Sabaean D'MT / pre-Aksumite → Aksumite
10 ha highland caravans town with Hawulti 5.5 m Sabaean obelisk, Aksumite stelai, palace of Kaskase and dam reservoir.
🇾🇪 Yemen · Hydraulic works
Marib Dam
Sabaean Kingdom, Early South Arabian (~1750 BCE – 570 CE) · Sabaean (South Arabian, Kingdom of Saba)
Earthfill diversion dam spanning the Wadi Adhanah and flanked by the limestone North and South Sluices with Sabaean monumental inscriptions.
🇾🇪 Yemen · Hydraulic works
Marib Wadi Dhana South Dam — Sabaean Southern Oasis Spillway
Sabaean to Himyarite (800 BCE – 575 CE) · Sabaean Kingdom (Saba) and Himyarite maintenance
South dam and spillway of Sabaean 763 m rock-fill marvel feeding southern oasis.